Unfortunately, this is a known bug in setuptools. It has no concept of
"build time" dependencies, so it probably computed all of the
dependencies correctly, but it doesn't install them in the correct order
-- it just assumes that as long as everything gets installed it will
work when it's finally run. This is the same problem that means even
though matplotlib specifies numpy as a dependency, "pip install
matplotlib" will not work unless numpy is already installed. This is a
perennial problem, and apparently the setuptools guys spend very little
time considering C extensions at all.
Mike
On 09/20/2013 09:37 AM, Benjamin Root wrote:
So, I was working from a completely fresh virtualenv, installing a
package that had a matplotlib dependency. As it happens to be, the
dependencies in this package lists matplotlib prior to numpy, so
matplotlib got processed first. For whatever reason, while processing
matplotlib, it didn't seem to think that it depended upon NumPy, but
failed anyway when it couldn't find it. See the following output:
Best match: matplotlib 1.3.0
Downloading
https://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.3.0/matplotlib-1.3.0.tar.gz
Processing matplotlib-1.3.0.tar.gz
Writing /tmp/easy_install-ZJ_Xb6/matplotlib-1.3.0/setup.cfg
Running matplotlib-1.3.0/setup.py -q bdist_egg --dist-dir
/tmp/easy_install-ZJ_Xb6/matplotlib-1.3.0/egg-dist-tmp-OqRvd1
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
matplotlib: yes [1.3.0]
python: yes [2.7.1 (r271:86832, Dec 8 2011,
15:48:40) [GCC
4.1.2 20080704 (Red Hat 4.1.2-51)]]
platform: yes [linux2]
REQUIRED DEPENDENCIES AND EXTENSIONS
error: Setup script exited with Requires numpy 1.5 or later to build.
(Numpy not found)
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File "/usr/local/CentOS5/lib/python2.7/atexit.py", line 24, in
_run_exitfuncs
func(*targs, **kargs)
File "/usr/local/CentOS5/lib/python2.7/multiprocessing/util.py",
line 258, in _exit_function
info('process shutting down')
TypeError: 'NoneType' object is not callable
Error in sys.exitfunc:
Traceback (most recent call last):
File "/usr/local/CentOS5/lib/python2.7/atexit.py", line 24, in
_run_exitfuncs
func(*targs, **kargs)
File "/usr/local/CentOS5/lib/python2.7/multiprocessing/util.py",
line 258, in _exit_function
info('process shutting down')
TypeError: 'NoneType' object is not callable
Thoughts?
Ben Root
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